Offhand Placement Control
Keep your offhand in check. Stop it from placing blocks everywhere.
About this Mod
This mod allows players to prevent block placement with the off-hand during gameplay (default key 'Y' to toggle the disable status), and the list of disabled items can be modified via the configuration.
Available Versions
How to Install Offhand Placement Control on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Offhand Placement Control". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Offhand Placement Control server crashes on startup – what to do?
Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is Offhand Placement Control compatible with neoforge?
Offhand Placement Control officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Offhand Placement Control – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Offhand Placement Control consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Offhand Placement Control with just one click on your server.